Sterilizer



FIG. 1 is a side-frontal perspective view of sterilizer showing our new design;

FIG. 2 is a side elevation view of FIG. 5;

FIG. 3 is a rear elevation view of FIG. 1;

FIG. 4 is a top plan view of FIG. 1; and

FIG. 5 is a front elevation view of an alternate embodiment of FIG. 1. 

The ornamental design for a sterilizer, substantially as shown and described. 